Car-ventilator



(No Model.)

J. BUTTON.

GAR VBNTILATOR.

No. 380,440. Eatented Apr. 3, i888.

ll'rnTnn STATES PATENT Trice.

JOHN HUTTOF, OF NEXV UTRECHT, ASSIGNOR OF ONE-HALF TO JOHN W. FOXVLER, OF BROOKLYN, NEWT YORK.

CAR-VENTILATO R.

SPECIFICATION' forming pari: of Iietters Patent No. 380.440, dated April 3, 1888.

Application filed March 22, 1&8?.

To all whom, i' may concern:

Be it known that I, JOHN HUTTON, a citicon of the United States, and a resident of New Utrecht, in the State of New York, have 5 invented a new and useful Iniprovenient in Car-Ventilators, of which the following is a specification.

rllhis invention relates to those car-ventilators which are designed to connect the intezo rior of the car with the open air, so as to permit the escape of its vitiated atmosphere and the entrance of fresh air without exposing the passengers to dral'ts, and so that the ventilating-openings can he read ily and quickly opened i5 and closed, or partly opened, at will. The

present device is primarily designed lor streetcars, but maybe embodied inany ear having a longitudinal dome in its roof.

This invention consists in certain novel combnations and arrangements of parts, hereinafter claimed, whereby in the rst place the Ventilatingopenings are located at the extreme top of the car,where the escape of air is most advantageous, and so as to be protected from the weather bythe eaves of the dome-roof, the requisite area of opening being obtained by multiplying small holes, so that when they admit air it is in numerous minutehorizontal jets high above the passengers, while slides 3o i'or closing or partly closing said Ventilatingholes are conveniently worked by levers, and at the same time slide rectilineally without eitherpart beingslotted, and, secondly, so that the customary side lights or Ventilating-windows in the sides of the dome coact with said Ventilating-openings, and consequently may be and are constructed so as to open only to a very limited extent, being, as regards ventila` tion, mainly intended as outlets when the ven- .sro tilating-openings do not suffice, while opening them so as to admit downward blasts of wind or so as to admit rain or snow is prevented, as hereinafter set forth.

A sheet of drawings accompanies this speciication as part thereof.

Figure l of the drawings represents a vertical longitudinal sectionin two parallel planes through acentral portion of the top of astreetcar illustrating this invention. Fig. 2 represents a horizontal section in the plane of the Seria-l No. 231,984. (No model.)

ventilatingopenings o seen at the top in Fig. 1, with a top View of the controlling-slides. Figs. 3 and 4 represent vertical sections on the `lines 3 3 and 4 4, Fig. 1, respectively; and Fig.

5 is a perspective vienT of the actuating end 5 of one slide,with its lever and other appurtenances, on a scale of two to one as compared with the other figures.

Li keletters of referenceindlcate corresponding parts in the several tigures.

Immediately beneath the rooting-boards of the dome-roof R, I substitute for the customary solid upper stringer or top sill at each side a hollow sectional Stringer, A, composed of perforated flat sides and a bottom strip. iVithin this I place a pairof (or it may be one or more than two) sectional slides, B, having perforations which correspond with those in the sides of the Stringer, so that in one position of the slide the perforations coincide and form the Ventilating-openings o, as represented at the left in Fig. I and more clearly in Fig. 3.

At middength of the car (or it maybe at any convenient point) I provide each slide B with a thick terminal portion, t, correspondingly cutting away the front of the Stringer A at this point to accommodate the same, and I mask this opening with a metallic cap-plate, O, attached at its ends to thestringerby screws and provided with a curved slot, s, Fig. 5, through which acoupling-screw, c, is inserted into said terminal portion t, to couple to the slide a inger-lever, D, which is attached to said cap-plate by a fulcrum-screw,f, and provided near its free end with a locking-spring, l. At this point the lever D is embraced by a'keeper, E, attached to the inner edge of the bottom sill, S, of the dome side, as shown in Figs. l and 4:, and having a pair of pockets, m n, Fig. 5, in either of which it is retained by said spring Z until sufficient forceis applied to the lever by hand to overcome the spring. Each slide is thus held in one or the other of its positions (open or closed) represented, respectively, at the left and the right hand in Figs. l and 2.

The several sections of which each slide B is composed work between therespective pairs of dome-roof ribs R2, and are coupled together by their metallic unions il., flush with the roo top of each section, and the thickness of which determines the depth of notch in each rib. The flexibility of said unions u permits the end section of the slide to accommodate itself to operation by the lever D, as aforesaid.

, Outside of the Stringer-A said ribs R2 extend the dome-roof to form the customary eaves, e, which are utilized to protect the Ventilatingopenings @and the slides B from the Weather. The dome-roof R and said stringers A are supported by short uprights or posts P, uniting said ribs R with said lower sills, S, and between these posts the customary VentilatingwindoWs,W', are pivoted, butso as tolimit their opening movement to the small extent represented by dotted lines in Fig. 3. They thus form effective supplemental outlets in connec tion with said Ventilating-openings c, as represented by arrows in Fig. 3, While opening them to an objectionable extent is prevented.

The main roof and its ribs Rare not affected by my present invention;

Having thus described my said improvement in car-ventilators, I claim as my invention and desire to patent under this speciiica- 25 tionl. In a car-ventilator, the Within-described perforated slides, each composed of several sections coupled together by flexible metallic unions, in combination with levers having xed fulcrums and coupled directly to each slide at one end Without slots in either part, substantially as herein specified.

2. The combination, inacar-dome, of stringers immediately below its roof, provided with lateral Ventilating-openings and means, substantially as described, for closing or partly closing the saine at Will, and side windows beneath said stringers, mounted on horizontall pivots and having a limited opening move- 4o ment, substantially as herein specified, for the purpose set forth.

JOHN HUTTON. Vitnesses:

W. VANDEWATER, L, E. ROBERT. 

